Kouki Sato
27Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: Apr 20, 1987 → Apr 19, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6373366B1 | Common mode filter | Electricity | 59 | Expired |
| US5912609A | Pot-core components for planar mounting | Electricity | 43 | Expired |
| US6617948B2 | Pot-core components for planar mounting and method of manufacturing the same | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6114940A | BALUN transformer core material, BALUN transformer core and BALUN transformer | Electricity | 28 | Expired |
| US6242996A | Surface mount self-induction component | Electricity | 25 | Expired |
| US6477288B1 | Optical line switching system | Electricity | 25 | Expired |
| US6665113B2 | Wavelength converter and wavelength division multiplexing transmission method using same | Electricity | 22 | Expired |
| US7040814B2 | Functional optical module | Physics | 19 | Expired |
| US5923237A | Wirewound-chip balun transformer | Electricity | 17 | Expired |
| US6641024B2 | Stapling device | Physics | 14 | Expired |
| US4803340A | Covered arc-welding electrode | Performing Operations; Transporting | 13 | Expired |
| US7338217B2 | Functional optical module | Physics | 11 | Expired |
| US6876810B2 | Variable optical attenuator | Physics | 10 | Expired |
| US6636683B2 | Variable optical attenuator | Physics | 7 | Expired |
| US6033593A | BALUN transformer core material, BALUN transformer core and BALUN transformer | Chemistry; Metallurgy | 6 | Expired |
| US6604621B1 | Variable-speed moving sidewalk and method of designing it | Performing Operations; Transporting | 6 | Expired |
| US6778337B2 | Optical attenuator and optical attenuator module | Physics | 5 | Expired |
| US6607188B2 | Sheet post-processing apparatus | Performing Operations; Transporting | 5 | Expired |
| US6217790A | BALUN transformer core material, BALUN transformer core and BALUN transformer | Chemistry; Metallurgy | 4 | Expired |
| US6341683B1 | Moving walk | Performing Operations; Transporting | 4 | Expired |
| US6773005B2 | Sheet post-processing apparatus with fixed and auxiliary guide members | Performing Operations; Transporting | 4 | Expired |
| US7061664B2 | Wavelength converter and wavelength division multiplexing transmission method using the same | Electricity | 4 | Expired |
| US6730535B2 | Silicon device manufacturing method, silicon device, and optical component | Physics | 3 | Expired |
| US6846280B2 | Sheet post-processing device and image forming apparatus having the same | Physics | 3 | Expired |
| US7013075B2 | Variable optical attenuator | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.